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    • Mon

      Oct 3

      75° /55°
      Partly sunny and beautiful
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Oct 4

      70° /58°
      Pleasant with sun and clouds
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Oct 5

      71° /61°F
      Times of clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Thu

      Oct 6

      68° /58°
      Partly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Oct 7

      72° /62°
      Sunny and warmer
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    71°Hi RealFeel® 70° Precipitation 25%
    Times of clouds and sun
    • SSE 7 mph
    • Gusts: 20 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 8%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    61°Lo RealFeel® 59° Precipitation 25%
    Partly cloudy
    • SSE 7 mph
    • Gusts: 15 mph
    • Max UV Index: N/A
    • Thunderstorms: 14%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/5/2015
    High 71° 68° N/A 66°
    Low 61° 52° N/A 46°

    Sunrise/Sunset

    • Sunrise: 7:09 AM
    • Sunset: 6:44 PM
    • Duration: 11:35 hr

    Moonrise/Moonset

    • Moonrise: 11:13 AM
    • Moonset: 9:42 PM
    • Duration: 10:29 hr
    Astronomy

    Rockville Weather Report

    Persistent rain to raise flood risk in part of northeastern US late this week

    September 28, 2016; 9:55 PM ET

    Rain will spread over much of the northeastern U.S. into the weekend, but persistent downpours will raise the flood risk in part of the mid-Atlantic. More >